Motor vehicle tail gas lightproof smoke intensity detection device

Abstract

The utility model belongs to the technical field of motor vehicle tail gas detection, and particularly relates to a motor vehicle tail gas lightproof smoke intensity detection device which comprises a shell, a detection dark cavity is formed in the shell, a lightproof smoke intensity detection unit is fixedly connected to the shell, and the front end of the shell is fixedly connected with an air inlet set communicated with the detection dark cavity. The rear end of the shell is fixedly connected with a shading exhaust set communicated with the detection dark cavity, the air inlet set comprises a flexible cover fixedly connected to the front end of the shell, the flexible cover is made of a deformable material, a connecting piece is assembled at the front end of the flexible cover and is an elastic ring, and the shading exhaust set comprises a smoke exhaust barrel fixedly connected to the rear end of the shell. And a rectangular cavity communicated with the detection dark cavity is formed in the smoke discharging cylinder. According to the utility model, the tail gas discharged by the tail gas discharge pipe of the motor vehicle can be directly conveyed to the detection dark cavity in the shell for detection, so that the external interference in the process of carrying out light-proof smoke intensity detection on the tail gas is reduced, and the detection accuracy is improved.

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